Short Description:

Galvanized square pipe  is electric galvanized, galvanized amount is very small, only 10-50g/m2, its own corrosion resistance is much different than hot galvanized pipe. Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electric galvanizing (cold plating). Only those small enterprises with obsolete equipment use electric galvanizing, of course, their prices are relatively cheap. The Ministry of Construction has formally announced the elimination of cold galvanized pipes with backward technology, and it is not allowed to use cold galvanized pipes as water and gas pipes. The galvanized layer of cold galvanized steel pipe is an electric coating, and the zinc layer is independently layered with the steel pipe matrix. The zinc layer is thin, and the zinc layer is simply attached to the steel tube matrix and easy to fall off. Therefore, its corrosion resistance is poor. In new residential buildings, it is prohibited to use cold galvanized steel pipes as water supply pipes.

Processing Services: Bending, Welding, Decoiling, Cutting, Punching

Alloy Or Not: Non-Alloy

Section Shape: Square

Standard: AiSi, ASTM, BS, DIN, GB, JIS, GB/T3094-2000,GB/T6728-2002,ASTM A500,JIS G3466,DIN EN10210,or others

Inspection: SGS, TUV, BV, Factory Inspection

Technique: Other, Hot Rolled, Cold Rolled,ERW,High-frequency welded,Extruded

Surface Treatment: Zero, Regular, Mini, Big Spangle

Tolerance: ±1%

Processing Service: Welding, Punching, Cutting, Bending, Decoiling

Delivery Time: 3-15 days (according to the actual tonnage)

Port Information: Tianjin Port, Shanghai Port, Qingdao Port, etc.